Ramona Singer is going through a tough timethe last thing she needs is for a former friend to comment on her impending divorce from Mario Singer . And yet, that's exactly what Jill Zarin has done. Real Housewives of New York City costar Zarin, 50, for speaking to the press about Mario's alleged infidelity earlier in the week. The jewelry designer also responded to a Twitter user who asked that she "be sensitive" to 19-year-old Avery Singer's needs. "This remains a personal matter," Ramona wrote. "I don't need to be reminded about my daughter. She is my priority ALWAYS."